RT9728A - Richtek

RT9728A 1.3A Power Switch

The RT9728A is a cost effective, low voltage, single P-MOSFET high side power switch IC for USB application with a programmable current limit feature. Low switch-on resistance (typ.120mΩ) and low supply current (typ. 120μA) are realized in this IC.The RT9728A can offer a programmable current limit threshold between 75mA and 1.3A (typ.) via an external resist.

Features

 ±10% Current Limit Accuracy @ 1.3A
 Adjustable Current Limit : 75mA to 1.3A (typ.)
 Meets USB Current Limiting Requirements
 Operating Voltage Range : 2.5V to 5.5V
 Reverse Input−Output Voltage Protection
 Built-in Soft-Start
 120mΩ High Side MOSFET
 120μA Supply Current
 RoHS Compliant and Halogen Free Applications
 USB Bus/Self Powered Hubs
 USB Peripheral Ports
 ACPI Power Distribution
 Battery Power Equipment
 3G/3.5G Data Card, Set-Top Boxes Pin Configurations (TOP VIEW) VOUT ILIM FAULT 654 23 VIN GND EN/EN SOT-23-6 VOUT 1 ILIM 2 FAULT 3 GND 6 VIN 5 GND 7 4 EN/EN WDFN-6.